如何为 Listview 实现自定义 FirebaseAdapter?
How to implement custom FirebaseAdapter for Listview?
我正在使用自定义适配器来实现列表视图,而不是默认的简单列表视图。现在,我想为它添加 Firebase 功能,以使用它的实时数据库功能。
我知道实现默认 FirebaseAdapter 方法的步骤,但如何使用 Firebase 为列表视图实现自定义适配器?
简单 FirebaseAdapter 的代码:
mRef = new Firebase("https://<myURL>..");
com.firebase.ui.FirebaseListAdapter<String> myAdapter;
myAdapter = new FirebaseListAdapter<String>(this,String.class,android.R.layout.simple_list_item_1,mRef) {
@Override
protected void populateView(View view, String s, int i) {
TextView text = (TextView) view.findViewById(android.R.id.text1);
text.setText(s);
}
};
final ListView lv = (ListView) findViewById(R.id.listView);
lv.setAdapter(myAdapter);
可以这样做:
public class MainActivity extends AppCompatActivity {
Firebase mRef;
com.firebase.ui.FirebaseListAdapter<String> myAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRef = new Firebase("https://<myURL>..");
myAdapter = new FirebaseListAdapter<String>(this,String.class,android.R.layout.simple_list_item_1,mRef) {
@Override
protected void populateView(View view, String s, int i) {
TextView text = (TextView) view.findViewById(android.R.id.text1);
text.setText(s);
}
};
final ListView lv = (ListView) findViewById(R.id.listView);
lv.setAdapter(myAdapter);
}
}
我正在使用自定义适配器来实现列表视图,而不是默认的简单列表视图。现在,我想为它添加 Firebase 功能,以使用它的实时数据库功能。
我知道实现默认 FirebaseAdapter 方法的步骤,但如何使用 Firebase 为列表视图实现自定义适配器?
简单 FirebaseAdapter 的代码:
mRef = new Firebase("https://<myURL>..");
com.firebase.ui.FirebaseListAdapter<String> myAdapter;
myAdapter = new FirebaseListAdapter<String>(this,String.class,android.R.layout.simple_list_item_1,mRef) {
@Override
protected void populateView(View view, String s, int i) {
TextView text = (TextView) view.findViewById(android.R.id.text1);
text.setText(s);
}
};
final ListView lv = (ListView) findViewById(R.id.listView);
lv.setAdapter(myAdapter);
可以这样做:
public class MainActivity extends AppCompatActivity {
Firebase mRef;
com.firebase.ui.FirebaseListAdapter<String> myAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRef = new Firebase("https://<myURL>..");
myAdapter = new FirebaseListAdapter<String>(this,String.class,android.R.layout.simple_list_item_1,mRef) {
@Override
protected void populateView(View view, String s, int i) {
TextView text = (TextView) view.findViewById(android.R.id.text1);
text.setText(s);
}
};
final ListView lv = (ListView) findViewById(R.id.listView);
lv.setAdapter(myAdapter);
}
}